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OpenStudy (anonymous):
If P(A or B) = 0.5, P(A) = 0.2 and P(B) = 0.7, determine P(A and B). 0.10 0.35 0.40 0.90
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OpenStudy (anonymous):
P(A or B) =P(A)+P(B) -P(A and B) .5 = .2 + .7 - .4 P(A and B) =.40
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